diff options
Diffstat (limited to 'src/soc/intel/braswell/gfx.c')
| -rw-r--r-- | src/soc/intel/braswell/gfx.c | 398 |
1 files changed, 398 insertions, 0 deletions
diff --git a/src/soc/intel/braswell/gfx.c b/src/soc/intel/braswell/gfx.c new file mode 100644 index 0000000000..0601e94d05 --- /dev/null +++ b/src/soc/intel/braswell/gfx.c @@ -0,0 +1,398 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <arch/io.h> +#include <console/console.h> +#include <delay.h> +#include <device/device.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <reg_script.h> +#include <stdlib.h> + +#include <soc/gfx.h> +#include <soc/iosf.h> +#include <soc/pci_devs.h> +#include <soc/ramstage.h> + +#include "chip.h" + +#define GFX_TIMEOUT 100000 /* 100ms */ + +/* + * Lock Power Context Base Register to point to a 24KB block + * of memory in GSM. Power context save data is stored here. + */ +static void gfx_lock_pcbase(device_t dev) +{ + struct resource *res = find_resource(dev, PCI_BASE_ADDRESS_0); + const u16 gms_size_map[17] = { 0,32,64,96,128,160,192,224,256, + 288,320,352,384,416,448,480,512 }; + u32 pcsize = 24 << 10; /* 24KB */ + u32 wopcmsz = 0x100000; /* PAVP offset */ + u32 gms, gmsize, pcbase; + + gms = pci_read_config32(dev, GGC) & GGC_GSM_SIZE_MASK; + gms >>= 3; + if (gms > ARRAY_SIZE(gms_size_map)) + return; + gmsize = gms_size_map[gms]; + + /* PcBase = BDSM + GMS Size - WOPCMSZ - PowerContextSize */ + pcbase = pci_read_config32(dev, GSM_BASE) & 0xfff00000; + pcbase += (gmsize-1) * wopcmsz - pcsize; + pcbase |= 1; /* Lock */ + + write32((u32 *)(uintptr_t)(res->base + 0x182120), pcbase); +} + +static const struct reg_script gfx_init_script[] = { + /* Allow-Wake render/media wells */ + REG_RES_RMW32(PCI_BASE_ADDRESS_0, 0x130090, ~1, 1), + REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x130094, 1, 1, GFX_TIMEOUT), + /* Render Force-Wake */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x1300b0, 0x80008000), + REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x1300b4, 0x8000, 0x8000, + GFX_TIMEOUT), + /* Media Force-Wake */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x1300b8, 0x80008000), + REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x1300bc, 0x8000, 0x8000, + GFX_TIMEOUT), + /* Workaround - X0:261954/A0:261955 */ + REG_RES_RMW32(PCI_BASE_ADDRESS_0, 0x182060, ~0xf, 1), + + /* + * PowerMeter Weights + */ + + /* SET1 */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA800, 0x00000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA804, 0x00000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA808, 0x0000ff0A), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA80C, 0x1D000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA810, 0xAC004900), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA814, 0x000F0000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA818, 0x5A000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA81C, 0x2600001F), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA820, 0x00090000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA824, 0x2000ff00), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA828, 0xff090016), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA82C, 0x00000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA830, 0x00000100), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA834, 0x00A00F51), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA838, 0x000B0000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA83C, 0xcb7D3307), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA840, 0x003C0000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA844, 0xFFFF0000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA848, 0x00220000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA84c, 0x43000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA850, 0x00000800), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA854, 0x00000F00), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA858, 0x00000021), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA85c, 0x00000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA860, 0x00190000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xAA80, 0x00FF00FF), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xAA84, 0x00000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x1300A4, 0x00000000), + /* SET2 */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA900, 0x00000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA904, 0x00000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA908, 0x00000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa90c, 0x1D000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa910, 0xAC005000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa914, 0x000F0000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa918, 0x5A000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa91c, 0x2600001F), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa920, 0x00090000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa924, 0x2000ff00), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa928, 0xff090016), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa92c, 0x00000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa930, 0x00000100), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa934, 0x00A00F51), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa938, 0x000B0000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA93C, 0xcb7D3307), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA940, 0x003C0000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA944, 0xFFFF0000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA948, 0x00220000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA94C, 0x43000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA950, 0x00000800), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA954, 0x00000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA960, 0x00000000), + /* SET3 */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xaa3c, 0x00000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xaa54, 0x00000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xaa60, 0x00000000), + /* Enable PowerMeter Counters */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA248, 0x00000058), + + /* Program PUNIT_GPU_EC_VIRUS based on DPTF SDP */ + /* SDP Profile 4 == 0x11940, others 0xcf08 */ + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_GPU_EC_VIRUS, 0xcf08), + + /* GfxPause */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa000, 0x00071388), + + /* Dynamic EU Control Settings */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa080, 0x00000004), + + /* Lock ECO Bit Settings */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa180, 0x80000000), + + /* DOP Clock Gating */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9424, 0x00000001), + + /* MBCunit will send the VCR (Fuse) writes as NP-W */ + REG_RES_RMW32(PCI_BASE_ADDRESS_0, 0x907c, 0xfffeffff, 0x00010000), + + /* + * RC6 Settings + */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA090, 0x00000000), + /* RC1e - RC6/6p - RC6pp Wake Rate Limits */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA09C, 0x00280000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA0A8, 0x0001E848), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA0AC, 0x00000019), + /* RC Sleep / RCx Thresholds */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA0B0, 0x00000000), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA0B8, 0x00000557), + + /* + * Turbo Settings + */ + + /* Render/Video/Blitter Idle Max Count */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x2054, 0x0000000A), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x12054, 0x0000000A), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x22054, 0x0000000A), + /* RP Down Timeout */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA010, 0x000F4240), + + /* + * Turbo Control Settings + */ + + /* RP Up/Down Threshold */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA02C, 0x0000E8E8), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA030, 0x0003BD08), + /* RP Up/Down EI */ + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA068, 0x000101D0), + REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA06C, 0x00055730), + + /* RP Idle Hysteresis */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa070, 0x0000000a), + + /* HW RC6 Control Settings */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa090, 0x11000000), + + /* RP Control */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa024, 0x00000592), + + /* Enable PM Interrupts */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x44024, 0x03000000), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x4402c, 0x03000076), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa168, 0x0000007e), + + /* Aggressive Clock Gating */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9400, 0), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9404, 0), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9408, 0), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x940c, 0), + + /* Enable Gfx Turbo. */ + REG_IOSF_RMW(IOSF_PORT_PMC, SB_BIOS_CONFIG, + ~SB_BIOS_CONFIG_GFX_TURBO_DIS, 0), + REG_SCRIPT_END +}; + +static const struct reg_script gpu_pre_vbios_script[] = { + /* Make sure GFX is bus master with MMIO access */ + REG_PCI_OR32(PCI_COMMAND, PCI_COMMAND_MASTER|PCI_COMMAND_MEMORY), + /* Display */ + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0xc0), + REG_IOSF_POLL(IOSF_PORT_PMC, PUNIT_PWRGT_STATUS, 0xc0, 0xc0, + GFX_TIMEOUT), + /* Tx/Rx Lanes */ + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0xfff0c0), + REG_IOSF_POLL(IOSF_PORT_PMC, PUNIT_PWRGT_STATUS, 0xfff0c0, 0xfff0c0, + GFX_TIMEOUT), + /* Common Lane */ + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0xfffcc0), + REG_IOSF_POLL(IOSF_PORT_PMC, PUNIT_PWRGT_STATUS, 0xfffcc0, 0xfffcc0, + GFX_TIMEOUT), + /* Ungating Tx only */ + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0xf00cc0), + REG_IOSF_POLL(IOSF_PORT_PMC, PUNIT_PWRGT_STATUS, 0xfffcc0, 0xf00cc0, + GFX_TIMEOUT), + /* Ungating Common Lane only */ + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0xf000c0), + REG_IOSF_POLL(IOSF_PORT_PMC, PUNIT_PWRGT_STATUS, 0xffffc0, 0xf000c0, + GFX_TIMEOUT), + /* Ungating Display */ + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0xf00000), + REG_IOSF_POLL(IOSF_PORT_PMC, PUNIT_PWRGT_STATUS, 0xfffff0, 0xf00000, + GFX_TIMEOUT), + REG_SCRIPT_END +}; + +static const struct reg_script gfx_post_vbios_script[] = { + /* Deassert Render Force-Wake */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x1300b0, 0x80000000), + REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x1300b4, 0x8000, 0, GFX_TIMEOUT), + /* Deassert Media Force-Wake */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x1300b8, 0x80000000), + REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x1300bc, 0x8000, 0, GFX_TIMEOUT), + /* Set Lock bits */ + REG_PCI_RMW32(GGC, 0xffffffff, 1), + REG_PCI_RMW32(GSM_BASE, 0xffffffff, 1), + REG_PCI_RMW32(GTT_BASE, 0xffffffff, 1), + REG_SCRIPT_END +}; + +static inline void gfx_run_script(device_t dev, const struct reg_script *ops) +{ + reg_script_run_on_dev(dev, ops); +} + +static void gfx_pre_vbios_init(device_t dev) +{ + printk(BIOS_INFO, "GFX: Pre VBIOS Init\n"); + gfx_run_script(dev, gpu_pre_vbios_script); +} + +static void gfx_pm_init(device_t dev) +{ + printk(BIOS_INFO, "GFX: Power Management Init\n"); + gfx_run_script(dev, gfx_init_script); + + /* Lock power context base */ + gfx_lock_pcbase(dev); +} + +static void gfx_post_vbios_init(device_t dev) +{ + printk(BIOS_INFO, "GFX: Post VBIOS Init\n"); + gfx_run_script(dev, gfx_post_vbios_script); +} + +static void set_backlight_pwm(device_t dev, uint32_t bklt_reg, int req_hz) +{ + int divider; + struct resource *res; + + res = find_resource(dev, PCI_BASE_ADDRESS_0); + + if (res == NULL) + return; + + /* Default to 200 Hz if nothing is set. */ + if (req_hz == 0) + req_hz = 200; + + /* Base clock is 25MHz */ + divider = 25 * 1000 * 1000 / (16 * req_hz); + + /* Do not set duty cycle (lower 16 bits). Just set the divider. */ + write32((u32 *)(uintptr_t)(res->base + bklt_reg), divider << 16); +} + +static void gfx_panel_setup(device_t dev) +{ + struct soc_intel_baytrail_config *config = dev->chip_info; + struct reg_script gfx_pipea_init[] = { + /* CONTROL */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, PIPEA_REG(PP_CONTROL), + PP_CONTROL_UNLOCK | PP_CONTROL_EDP_FORCE_VDD), + /* POWER ON */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, PIPEA_REG(PP_ON_DELAYS), + (config->gpu_pipea_port_select << 30 | + config->gpu_pipea_power_on_delay << 16 | + config->gpu_pipea_light_on_delay)), + /* POWER OFF */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, PIPEA_REG(PP_OFF_DELAYS), + (config->gpu_pipea_power_off_delay << 16 | + config->gpu_pipea_light_off_delay)), + /* DIVISOR */ + REG_RES_RMW32(PCI_BASE_ADDRESS_0, PIPEA_REG(PP_DIVISOR), + ~0x1f, config->gpu_pipea_power_cycle_delay), + REG_SCRIPT_END + }; + struct reg_script gfx_pipeb_init[] = { + /* CONTROL */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, PIPEB_REG(PP_CONTROL), + PP_CONTROL_UNLOCK | PP_CONTROL_EDP_FORCE_VDD), + /* POWER ON */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, PIPEB_REG(PP_ON_DELAYS), + (config->gpu_pipeb_port_select << 30 | + config->gpu_pipeb_power_on_delay << 16 | + config->gpu_pipeb_light_on_delay)), + /* POWER OFF */ + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, PIPEB_REG(PP_OFF_DELAYS), + (config->gpu_pipeb_power_off_delay << 16 | + config->gpu_pipeb_light_off_delay)), + /* DIVISOR */ + REG_RES_RMW32(PCI_BASE_ADDRESS_0, PIPEB_REG(PP_DIVISOR), + ~0x1f, config->gpu_pipeb_power_cycle_delay), + REG_SCRIPT_END + }; + + if (config->gpu_pipea_port_select) { + printk(BIOS_INFO, "GFX: Initialize PIPEA\n"); + reg_script_run_on_dev(dev, gfx_pipea_init); + set_backlight_pwm(dev, PIPEA_REG(BACKLIGHT_CTL), + config->gpu_pipea_pwm_freq_hz); + } + + if (config->gpu_pipeb_port_select) { + printk(BIOS_INFO, "GFX: Initialize PIPEB\n"); + reg_script_run_on_dev(dev, gfx_pipeb_init); + set_backlight_pwm(dev, PIPEB_REG(BACKLIGHT_CTL), + config->gpu_pipeb_pwm_freq_hz); + } +} + +static void gfx_init(device_t dev) +{ + /* Pre VBIOS Init */ + gfx_pre_vbios_init(dev); + + /* Power Management Init */ + gfx_pm_init(dev); + + gfx_panel_setup(dev); + + /* Run VBIOS */ + pci_dev_init(dev); + + /* Post VBIOS Init */ + gfx_post_vbios_init(dev); +} + +static struct device_operations gfx_device_ops = { + .read_resources = pci_dev_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_dev_enable_resources, + .init = gfx_init, + .ops_pci = &soc_pci_ops, +}; + +static const struct pci_driver gfx_driver __pci_driver = { + .ops = &gfx_device_ops, + .vendor = PCI_VENDOR_ID_INTEL, + .device = GFX_DEVID, +}; |